You can file a complaint with the school board and you can file a claim with schoolboard

There is nothing unconstitutional about it

you should seek assistance from a social services agency. Regardless of whether there is a legal remedy, a case would takes months to go through...

Based on your limited information, no answer can be given. Consult directly wit an atorney

You can retain a probate attorney. Use AVVO search function

Of course you saved the ice cream and you are going to get it tested and of course you immediately went to the hospital and you were treated

if you are injured you should obtain medical treatment

Report them to the governemnt restaurant inspectors

This too complicated for a simple answer. Any attorney would need to see the documents contact the lawyer who represented you

doesnt sound like something capable of being done mor wise to do its up to you to contact lawyers